4 inch shell mill 9 inserts feed and speed
1. 4-inch shell milling cutter (9-edge insert) basic parameter quick reference table
Applicable scenarios: plane milling, heavy-duty roughing, roughing of large workpieces.
Core parameter formula:
Speed (RPM) = (Linear speed Vc × 1000) / (π × Tool diameter)
Feed speed (F) = Feed per tooth (fz) × Number of inserts × Speed
General parameter reference table (taking processing of 45# steel as an example)
| Material Type | Line speed（Vc） | Speed（RPM） | Feed per tooth（fz） | Feed speed（F） |
| Carbon steel (such as 45# steel) | 180-220 m/min | 700-900 | 0.08-0.15 mm/t | 500-1200 mm/min |
| Stainless steel (304) | 120-160 m/min | 400-600 | 0.05-0.12 mm/t | 200-600 mm/min |
| Cast iron (HT250) | 150-200 m/min | 600-800 | 0.12-0.25 mm/t | 600-1800 mm/min |
| Aluminum Alloy (6061) | 500-800 m/min | 1600-2500 | 0.15-0.3 mm/t | 2000-6000 mm/min |
2. Side milling cutter type 3 blade: choose the right blade, processing with half the effort!
Side milling cutter type 3 (such as APKT/APMT series) is designed for side wall and right angle milling, with the following features:
Double-sided cutting edge: each blade can use 2 cutting edges, which is highly economical.
Strong cutting edge: 45° main deflection angle design, balance cutting force and rigidity.
Universal chip breaker: suitable for a variety of materials such as steel and cast iron, with smooth and untangled chips
Recommended matching materials:
Steel (P type): 45# steel, alloy steel, mold steel (such as SKD11)
Stainless steel (M type): 304, 316 and other austenitic stainless steel
Cast iron (K type): gray cast iron (HT250), ductile iron (QT500)
Aluminum alloy (N type): match with sharp cutting edge blade to avoid sticking.
3. Why choose our milling inserts?
Widely applicable: Covering mainstream materials such as steel, stainless steel, cast iron, aluminum alloy, etc.
High cost performance: Multi-edge design + long-life coating, single-piece processing cost is reduced by 20%.
Worry-free parameters: Provide free processing parameter guidance to help you quickly match the best solution!
Whether it is the efficient plane processing of 4-inch shell milling cutter or the precise right-angle milling of 3-edge inserts of edge milling cutter type, we can provide you with a one-stop solution.
